55 years from now the world's population will probably have been cut by MORE than half. Yes I said it. If you pay attention to trajectory, mass, velocity and look at all the horrible things that have happened just within the last 7 years OR EVEN THE LAST 2 YEARS IN THE U.S., 55 years is totally unattainable for many thinking they'll actually live long enough to get there.
Roll the dice, because you never know where you'll be when the Iranian-Russian-Chinese-NoKorean nukes hit.